The magnetic phase diagram and the effect of pressure on the magnetic properties of the intermetallic compounds
作者:I S Dubenko、I Yu Gaidukova、Y Hosokoshi、K Inoue、A S Markosyan
DOI:10.1088/0953-8984/11/14/010
日期:1999.4.12
The magnetization up to 50 kOe, the magnetic susceptibility under external pressure up to 5 kbar and the thermal expansion of the cubic Laves phase compounds were studied over a wide temperature range. Two well defined concentration regions were isolated in the x-T phase diagram: , in which the antiferromagnetic structure is primarily determined by the d-d interaction (-type), and , in which the f-d
在很宽的温度范围内研究了高达 50 kOe 的磁化强度、高达 5 kbar 的外部压力下的磁化率和立方 Laves 相化合物的热膨胀。在 xT 相图中隔离了两个明确定义的浓度区域:其中反铁磁结构主要由 dd 相互作用(-型)决定,并且其中 fd 相互作用起主导作用(-型)。得出的结论是 Gd 和 Mn 亚晶格都在下面排序,40 K 时磁特性的变化被解释为反铁磁性 - 非共线亚铁磁性转变。中间化合物在低温下表现出短程有序特征的冻结和时间依赖性行为。